Ice-cutting device.



G. L. GRAY.

Patented Apr. 8, 1913.

GRANT L. GRAY, OF NEW YORK, N. Y.

ICE-CUTTING DEVICE.

Specification of Letters Patent.

Patented Apr. 8, 1913.

Application filed May 31, 1912. Serial No. 700,671.

.water into a series of blocks of the desired size; and moreparticularly to a hollow, cross-cut separating member into which a warmmedium may be introduced. A somewhat similar device has been disclosedin U. S. Letters Patent No. 876,015; and it is the object of the presentinvention to improve the device therein disclosed by constructing thesame entirely of sheet metal, preferably in one piece, and therebygreatly reducing the liability to leakage; and, furthermore, to afford aflexible cutter by providing between the walls of the same a resilientmember, and which member will at the same'time reinforce the cutter as awhole.

The construction of the improved cutter is such that all rivets andsolder on the side wall portions are dispensed with so the cutter may befreely drawn from between the blocks after having become detachedtherefrom. Provision is also made for the more ready drainage of thecutter after its removal from the freezing tank.

The nature of the invention will best be understood when described inconnection with the accompanying drawings, in which Figure 1 is anelevation of the improved cutter. Fig. 2 is a similar View but with onewall removed. Fig. 3 is a transverse vertical section taken on the line3-3, Fig. 1, and looking in the direction of the arrows. Fig. 4 is aplan of the cutter. Fig. 5 is a horizontal section taken on the line 55,Fig. 1.

Similar characters of reference designate corresponding parts throughoutthe several views.

Referring to the drawings, 10 and 11 designate respectively the outerwalls of the cutter and are composed of a single piece of sheet metalsuitably bent to form a hollow cutter. This may be accomplished, forexample, by starting at the free end 12 of a corrugated portion 13 ofthe material, the purpose of which will hereinafter be set forth, thenturning the metal back over and around the corrugated portion 13 to formthe said wall 10 which extends some distance beyond the free end 12 ofthe said corrugated member. The metal is then turned back again to formthe wall 11, which at its farther end is abruptly turned inwardly towardthe wall 10 providing a lip 14, which is soldered to the end of thecorrugated member 13, or otherwise suitably secured thereto. preferablyto taper toward the free end of the member 13, which, of course, islikewise tapered to correspond by making the successive corrugations ofless depth. The cutter is tapered also downwardly to enable the same tobe more readily withdrawn from the blocks of ice. Of course, thecorrugated member 13 might be made separately and insertedbetween thewalls 10 and 11; but I prefer to make the cutter entirely of a singlepiece of the sheetmetal, as hereinbefore set forth.

In order to decrease the liability of leakage, the wall 10 is foldedinwardly at the bottom to form an upwardly extending lap 15, thecorrugated member 13 terminating at a sufficient distance from thebottom to prevent interference with this lap. The wall 11 is broughtdown over this lap and is cut away partly, as shown in Fig. 1, the seambeing suitably soldered. A small lap 16, also, is turned from the sideof the cutter over the bottom of the same.

At the top, the hollow cutter hereinbefore described carries a suitablehead 17 which is riveted and soldered thereto to provide a water-tightjoint; and this head is provided with suitable openings 18 for theheated water and to permit the escape of the air. These openings areprovided in corresponding transverse cuts 19 of the head so that.

in setting the head on end to empty the cutter of the water, the samedrains freely The walls 10 and 11 are made,

therefrom. The cutters, as a whole, are supported by suitable lugs 20extending from the head 17; and are further provided with outwardlyextending arms 21 whereby the form to the pressure thereon, making thecutter as a whole flexible .'and.-..providing, a spring action on bothwalls throughout their entire height. the walls of the same are pressedtightly against the corrugationsyand when the hot water is introducedwithin-thegcutters, these Walls will again spring into place and thecutter consequently readily loosens and can be easily witl' drawn. Theconstruction here in .disclos ed whereby the cutter is madewithoutany-rivets, or solder projecting upon itsactive external,surface, provides a cutter forced throughout its length by thecorrugated member, ,13. and affords a sufiiciently strong and;,.at,thesame time, flexible cutter.

I claimi,

1. A utting. device for use in the manufacture .ofartificial ice,comprising: a hollow sheet metal member, having flexible walls, andareinforcing member held therein ,betweensaid Walls but unattachedthereto, and. extending substantially throughout their entire Width.

2. A cutting device for use in the manufacture ofwartificial ice,comprising: a hollow sheet metal ,member, and a corrugated, reinfQrcingmember held between the walls of thefsame.

3. ,A cutting. device for use in the manufacture of artificialic e,comprising: a single sheet of metal bent back upon itself, and areinforcing memberr formed of one end thereofturned in between thewallsof said cutting ,device.

When the cutter is frozenin,

4. A cutting device for use in the manufacture of artificial'ice,comprising: a single sheet of metal bent back upon itself, and areinforcing member formed of one end thereof turned in between the wallsof said cutting device, the said turned in portion being corrugated.

, 5. A cutting device for use in the manufacture of artificial ice,comprising: a single sheet of metal bent back upon itself, and areinforcing member formed of one end thereof turned in between the wallsof said cutting device, the said turned in portion being corrugated andits end remaining free and unattached to the cutting device.

6. A cutting device for use in the manufacture of artificial ice,comprising: a single sheet ofmetal bent back upon itself, and areinforcing member formed of one end thereo-fturned in between the wallsof said cutting device, the said turned in portion being corrugated andits end. remaining free and unattached to the cutting device, and thesaid corrugations being of decreasing depth toward the free end.

7. A cutting device for use in the manufacture of artificial ice,comprising: a single sheet of metal bent back upon itself, a reinforcingmember formed of one end thereof turned in between the walls of saidcutting device, the said turned in portion being corrugated and its endremaining free and unattached to the cutting device, and a lap memberextending upwardly from the bot tom of one of the walls and within theother wall.

Signed at New York, in the county of New York, and State of New York,this 27th day of May A. D. 1912. I GRANT L. GRAY.

Witnesses Fnnnn. F. Sorrnnrz, LAURA E. SMITH.

copies of this patent may, be obtained for,five cents each, byaddressing the Commissioner of Patents, Washington, D. C.

